When 3.00 moles of hydrogen molecules and 1.50 moles of oxygen molecules react, they form 3.00 moles of water according to the reaction below. how many grams of water were formed? (hint: this answer will have 3 sf.)

2h2+o2 ⇒ 2h2o

54.0 g
6.01 g
0.0185 g
0.167 g

54.0 g.

Explanation:

2H₂ + O₂ → 2H₂O.

When 3.00 moles of hydrogen molecules and 1.50 moles of oxygen molecules react, they form 3.00 moles of water according to the balanced reaction.

∴ The no. of grams in 3.0 moles of water = no. of moles x molar mass = (3.0 mol)(18.0 g/mol) = 54.0 g.

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